How cumulative heat exposure affects students’ cognitive performance

A holistic approach reveals the global spectrum of knowledge on the impact of heat exposure to heat on young students, according to an article published in The Open-Access Journal Plos climate By Konstantina Vasilakopoulou of the Royal Melbourne Institute of Technology, Australia, and Matthaios Santamouris of the University of New South Wales, Australia.

The article aims to shed light on social and economic inequalities caused within and between countries, potential adaptive measures to counterbalance the impact of overheating and forecasts on cognitive risks associated with future overheating.

Exposure to high temperatures, inside and outside, is strongly associated with unwanted health results. The impact of high temperatures and thermal stress on human productivity and cognitive performance is well documented.

Most studies indicate that exposure to excessive heat affects working memory, information processing and knowledge retention, thus altering global cognitive performance. The impact of high temperatures on the school performance of students is deep, influencing their educational, intellectual and professional achievements.

Although there is a plethora of surveys on momentary and short -term exposure of heat students and its effects, there is a lack of knowledge and information on the impact of long -term exposure on the cognitive performance of students.

Given the rapid increase in temperature caused by global and regional climate change, understanding the consequences of cumulative exposure to high temperatures on the cognitive capacity of students is an urgent priority.

To fill this lack of knowledge, the authors have examined seven studies, described in six articles evaluated by peers, which studied the effects of exposure to prolonged heat on the cumulative cognitive performance of students.

Collectively, these studies covered a set of extensive data comprising nearly 14.5 million students from 61 countries, connecting individual learning results to exposure to heat.

Overall, the results suggest that exposure to long -term heat has a negative impact on the cumulative learning of students, with complex tasks (for example, mathematics) more affected than the simplest (for example, reading).

Six of the seven studies have identified a significant negative relationship between prolonged heat exposure and cognitive performance, while a study revealed that the impact was minimal. Adaptation via acclimatization and the increase in the use of air conditioning showed protective effects. However, lower socioeconomic groups have been faced with more important disproportionate impacts, highlighting critical inequalities.

According to the authors, disorders linked to the loss of cognitive and human capital of the young generation can affect the future progress of nations due to the associated economic, social and cultural implications caused by persistent disturbances of the learning process.

The social cost of global overheating will unfortunately affect the fairness and quality of life of the low -income vulnerable population. It will accelerate societal differences and hinder economic progress in less developed countries with excessive heat exposure.

It is urgent to adopt a new perspective on the cognitive implications of climate change by advancing technologies and implementing robust and targeted policies to protect current and future human capital.

The authors add: “This study criticized the existing literature on the effects of long -term heat exposure – mainly pulled by climate change – on the cognitive performance of students. Prolonged exposure to high temperatures was systematically linked to reduced learning results, especially in tasks that require complex cognitive treatment, such as mathematics.

“The results have revealed that students in socio-economicly disadvantaged areas are disproportionately assigned. The factors contributing to this disparity include higher localized temperatures in low-income communities, limited access to air conditioning at school and at home, and less opportunities for academic support services such as private tutoring to compensate for learning losses.

“The projected climatic scenarios indicate that these disparities will only deepen over time, more disadvantage the populations of already vulnerable students. To alleviate these effects, the literature highlights several adaptive strategies to improve learning conditions, such as the implementation of inner and external cooling systems and the improvement of the ventilation of the class.”

They summarize: “This review, carried out during a year, examined a full range of sources on the subject. The evidence underlines how global warming can produce large -scale and often neglected social consequences. The most critical, it reiterates that those which carry the gross of the effects of climate change are often those which are the least responsible – and the least equipped to fight against its effects.”